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  1. // dialog_comment.cpp
  2.  
  3. #include "../common.h"
  4.  
  5.  
  6. // dialog template
  7. #define THIS_DIALOG DIALOG_COMMENT
  8.  
  9.  
  10. // prototypes of local functions
  11. static void StartThread_ThisDialog (void *thread_parms);
  12. static int CALLBACK DialogProc_ThisDialog (HWND hWnd, unsigned int message, WPARAM wParam, LPARAM lParam);
  13.  
  14.  
  15. void DialogBox_Comment (void)
  16. {
  17.    // helper function to fire up the modeless dialog box
  18.  
  19.    is_dialogbox_displayed = true;
  20.    _beginthread (StartThread_ThisDialog, 0, NULL); // fire up a new one
  21.  
  22.    return; // return as soon as the thread is fired up
  23. }
  24.  
  25.  
  26. void DialogBox_Comment_Validated (void)
  27. {
  28.    // callback function called by the main game thread when the dialog box is validated
  29.  
  30.    // remember this callback is no longer to be called
  31.    is_dialogbox_comment_validated = false;
  32.  
  33.    return; // finished
  34. }
  35.  
  36.  
  37. static void StartThread_ThisDialog (void *thread_parms)
  38. {
  39.    // this function runs in a separate thread, for that's the only way (seemingly)
  40.    // to implement a non-modal message box using the Common Controls library.
  41.  
  42.    // display the dialog box
  43.    if (DialogBox (hAppInstance, MAKEINTRESOURCE (THIS_DIALOG), hMainWnd, DialogProc_ThisDialog) == 1)
  44.       is_dialogbox_comment_validated = true;
  45.    is_dialogbox_displayed = false;
  46.  
  47.    the_board.reevaluate = true; // refresh the GUI buttons if needed
  48.    return; // _endthread() implied
  49. }
  50.  
  51.  
  52. static int CALLBACK DialogProc_ThisDialog (HWND hWnd, unsigned int message, WPARAM wParam, LPARAM lParam)
  53. {
  54.    // message handler for the dialog box
  55.  
  56.    unsigned short wParam_hiword;
  57.    unsigned short wParam_loword;
  58.    int new_size;
  59.  
  60.    // filter out the commonly used message values
  61.    wParam_hiword = HIWORD (wParam);
  62.    wParam_loword = LOWORD (wParam);
  63.  
  64.    // have we just fired up this window ?
  65.    if (message == WM_INITDIALOG)
  66.    {
  67.       // center the window
  68.       CenterWindow (hWnd, hMainWnd);
  69.  
  70.       // set dialog icons (small one for title bar & big one for task manager)
  71.       SendMessage (hWnd, WM_SETICON, ICON_SMALL, (LPARAM) LoadIcon (hAppInstance, MAKEINTRESOURCE (ICON_MAIN)));
  72.       SendMessage (hWnd, WM_SETICON, ICON_BIG, (LPARAM) LoadIcon (hAppInstance, MAKEINTRESOURCE (ICON_MAIN)));
  73.  
  74.       // set window title and control texts
  75.       SetWindowText (hWnd, LOCALIZE (L"Comment_Title"));
  76.       Static_SetText (GetDlgItem (hWnd, STATICTEXT_COMMENT_QUESTION), LOCALIZE (L"Comment_Question"));
  77.       SetWindowText (GetDlgItem (hWnd, BUTTON_OK), LOCALIZE (L"Button_OK"));
  78.       Static_SetText (GetDlgItem (hWnd, STATICTEXT_COMMENT_STATUSBAR), LOCALIZE (L"Comment_StatusBar"));
  79.  
  80.       // set the edit box comment, select all text and send focus to it
  81.       if ((the_board.move_count > 1) && (the_board.viewed_move >= 1) && (the_board.viewed_move < the_board.move_count)
  82.           && (the_board.moves[the_board.viewed_move].comment != NULL) && (the_board.moves[the_board.viewed_move].comment[0] != 0))
  83.       {
  84.          SetWindowText (GetDlgItem (hWnd, EDITBOX_COMMENT), the_board.moves[the_board.viewed_move].comment);
  85.          SendMessage (GetDlgItem (hWnd, EDITBOX_COMMENT), EM_SETSEL, 0, -1);
  86.       }
  87.       SetFocus (GetDlgItem (hWnd, EDITBOX_COMMENT));
  88.  
  89.       // convert the status bar message to a hyperlink
  90.       ConvertStaticToHyperlink (GetDlgItem (hWnd, STATICTEXT_COMMENT_STATUSBAR));
  91.    }
  92.  
  93.    // else did we click the close button on the title bar ?
  94.    else if (message == WM_CLOSE)
  95.       EndDialog (hWnd, 0); // close the dialog box
  96.  
  97.    // else did we take action on one of the controls ?
  98.    else if (message == WM_COMMAND)
  99.    {
  100.       // did we cancel the dialog box ? (IDCANCEL is a system-wide dialog box handler value, that catches the ESC key)
  101.       if (wParam_loword == IDCANCEL)
  102.          EndDialog (hWnd, 0); // close the dialog box
  103.  
  104.       // else was it the OK button ?
  105.       else if (wParam_loword == BUTTON_OK)
  106.       {
  107.          // grab the edit box comment
  108.          if ((the_board.move_count > 1) && (the_board.viewed_move >= 1) && (the_board.viewed_move < the_board.move_count))
  109.          {
  110.             // get comment length
  111.             new_size = GetWindowTextLength (GetDlgItem (hWnd, EDITBOX_COMMENT));
  112.  
  113.             // was there text at all ?
  114.             if (new_size > 0)
  115.             {
  116.                // if so, reallocate (add one for the terminator character) and copy comment
  117.                the_board.moves[the_board.viewed_move].comment = (wchar_t *) SAFE_realloc (the_board.moves[the_board.viewed_move].comment, the_board.moves[the_board.viewed_move].comment_size, new_size + 1, sizeof (wchar_t), false);
  118.                GetWindowText (GetDlgItem (hWnd, EDITBOX_COMMENT), the_board.moves[the_board.viewed_move].comment, new_size + 1);
  119.                the_board.moves[the_board.viewed_move].comment_size = new_size + 1; // remember comment size
  120.             }
  121.             else
  122.             {
  123.                SAFE_free ((void **) &the_board.moves[the_board.viewed_move].comment); // comment was erased, free the memory space used for it
  124.                the_board.moves[the_board.viewed_move].comment_size = 0; // and reset its size to zero
  125.             }
  126.          }
  127.  
  128.          EndDialog (hWnd, 1); // close the dialog box and return OK
  129.       }
  130.  
  131.       // else was it the status bar hyperlink ?
  132.       else if (wParam_loword == STATICTEXT_COMMENT_STATUSBAR)
  133.          ShellExecute (NULL, L"open", PROGRAM_URL, NULL, NULL, SW_MAXIMIZE); // open the donation page in the default browser, maximized
  134.    }
  135.  
  136.    // call the default dialog message processing function to keep things going
  137.    return (false);
  138. }
  139.